fuller



Oct. 10-, 1933. F. L. FULLER 1,930,237

CASH REGISTER Original Filed May 23, 1919 2 Sheets-Sheet l 8 FrederickL. Fuller Hi. 6H0: "a

Oct. 10, 1933. v FULLER 1,930,237

CASH REGISTER Original Filed May 23, 1919 2 Sheets-Sheet 2 Frederick L.Fuller By I MW Patented Oct. 10, 1933 o sH REGISTER V Fuller, Ilion, N.Y., assignor to The Frederick L.

National Cash Register a Company, Ohio, a corporation of MarylandOriginal application May 23,1919, Serial No.

Dayton,

299,112. Divided and this applicaticnMarch 25, 1927.. Serial No. 178,433

'l'Claims. (01. 235-138) I This is a division of the applicationfor'Letters Patent of the United States, of Frederick L.,Fuller, SerialNo. 299,112, filed May 23, 1919, issued into Patent, No. 1,761,718, onJune 3, 1930.

One. object of this invention is. to provide a novel form of transfermechanism for totalizers. The transfer mechanism may be used with asingle totalizer, or in connection with a plurality of totalizers. Inthe present application a plu- IO rality of totalizers and transfermechanisms are shown, and the transfermechanisms are arranged so as tobe operated by a common driving mechanism. The transfer mechanism shownherein, being operated by a single driving mechanism, has its advantagesover other types of transfer mechanisms used in connection with aplurality of totalizers in that, in the present case, by the use of thesingle driving mechanism, the number of parts is materially reduced.

80 Another object of this invention is to arrange the actuators,totalizers and transfer mechanism in such a way as to permit thetransfer mecha-' nism to be operated wholly independently of theactuating mechanism. By the use of this confor operating the transfermechanism; hence, a more reliable transfer is obtained.

Withthese and incidental objects in view, the

invention consists of certain novel features of Fig. 2 shows one of thetransfer cams and a part ofthe transfer mechanism for one-ofthe 65,normally in engagement with a shoulder 66 totalizers. l y I a Fig.3shows the common driving mechanism for all transfer cams.

pinions, and. shows how a carry is made from'a lower to a higher orderwheel.

Fig. 5 is aside elevation of the mechanism shown in Fig.4, and inaddition shows the transfer pinion aligning pawl. I i

Fig. 6 is a perspective view of the transfer trip mechanism. a r

m s The amount keys 30,.which control the various struction more timemay ,be given to the means Fig. 4is an edge view of two orders oftotalizer positions of the differential. mechanism, are carried in a keyframe 31, (Fig. 1) supported on rods 32.

The key'frame 31 also carries azero stop pawl 33, normally in positionto stop the differential mechanism in the zero position'when there is noamount key 30 depressed in that'bank.

By the mechanism shown in the parent case; whenever one of the amountkeys 30 is depressed, the zero stop pawl 33 is rocked counter-clockwiseto an ineffective position.

Difierentidl mechanism A main operating'shaft 40 carriesa pair of cams41 and 42, which co-operate with rollers 43 and 44, .9;;

respectively, on a lever 45, pivoted on a shaft driving segments 51, onefor each of the denom- I V inational orders of the totalizers. 1

Associated with each segment 51-is a differenso tially adjustable arm 52having rigid therewith a gear segment 53 arranged to mesh with arack 54,slidably mounted upon the shaft46 and a shaft 56. p I p Loose on theshaft 50 and associated with each of the arms 52,-is an-arm 60 having aright angle flange 61, adapted to co-operate with thezero stop pawl 33or the shank of a depressed key 30, to stop the differential mechanismeither in the zero position or the position corresponding to the valueof adepressed key. A lever 62 pivoted on a pin 63 on the arm 52,normally engages the underside of the'flange 61. The lever 62 alsocarries a stud 64, enteredin a notch in the forward end of the arm 60. I

Also pivoted upon the pin, 63 is a latch pawl on the driving segment51'. The pawl 65 is also connected to the lever 62 by a pin 67.Afcompression spring 68, between-the differential ,arm

52 and the arm 60 holdsjthepawl 65. infengagement with the shoulder '66When the partsare in the positionsshown Fig. 1,'byits clockwisemovement, the segment 51 rocks the arms 52zand. 60 until the flange l05611 contacts the shank of the depressed key.

This arrests the clockwise movement of the arm Y 60, but the segment-51continues to move clockdisengaged from the shoulder 66 on the segment51.

The pawl 65, when moved as above stated, causes its nose to enter one ofthe notches 69, appropriate to the depressed key.

The nose of the pawl is now held and locked in the notch 69, due to thefact that the rear end of the pawl is now riding upon the outerperiphery of the segment 51.

The above described differential setting of the arm 52 causes itssegment 53 to set the totalizer rack 54 to a position corresponding tothe value of the key depressed.

In order to allow time for the latch to be disconnected from the drivingsegment 51 in the zero position, so that the actuating rack will not bemoved when no amount key has been depressed, the arm 52 carries a stud75, (Fig. 1) normally projecting into a slot 76 in the front edge of therack 54.

It will also be noticed that the segment 53 is not in engagement withthe rack 54 when the parts are in their normal positions.

Theslot 76 is arranged so that part of it is concentric with the centerof the shaft 50. When the arm 52 is oscillated, the stud 75 slides inthis concentric portion until the segment 53 engages an edge 74 of therack 54. If there has been no key depressed, and the zero stop pawl 33causes the latch pawl 65 to become disengaged from the segment 51 in thezero position, the arm 52 will be rocked slightly, but not enough tocause the stud 75 to become disengaged from the concentric portion ofthe slot 76. Consequently, when the latch is disconnected in the zeroposition, the pin and slot '76 keep the rack 54 from being moved out ofnormal position.

If any key in the bank has been depressed and the arm 52 is oscillatedbeyond the zero position, 40'

the pin '75 moves the rack 54 down until the segment 53 becomes engagedwith the rack 54. The segment 53then moves the rack 54, thus causing thestud '75 to be disengaged from the concentric portion of the slot 76 andto enter the remaining portion and finally become entirely disengagedfrom said slot.

After the totalizers have been engaged with the rack 77, on the rearside of the rack 54, the cams 41 and 42 cause the shaft 50 to beoscillated counter-clockwise to its home position. As the segment 51moves toward its home position, the tail of the pawl 65 again becomesengaged with the shoulder 66 and its nose disengaged from the notch 69.When the pawl 65 moves clockwise, a surface '78 of the segment 51strikes a pin '79 on the arm 52, thus restoring this arm, and the arm 60to their normal positions. The pin 75, by its engagement with the slot76, restores the rack 54 to normal position.

Totalizers There are threelines of totalizers, each line having aplurality of totalizers thereon. Each totalizer comprises a group ofwheels 90, the

wheels of likedenomination of the totalizers on the shaft being groupedtogether. Fig. 4 shows two orders of one of the totalizers and thewheels are marked units and tens, for convenience in describing thetransfer mechanism.

.. (Fig. 2) rigid on a shaft 93, mounted for longitudinal movement toselect the proper wheels for actuation. However, since the totalizerselecting mechanism forms no part of this particular invention, it isnot described herein, and reference may be had to the parent case,Patent No. 1,761,718, if a description of the selecting mechanism isdesired.

Mounted on sleeves projecting in the side frames of the machine, is apair of arms 94, (one only being shown) supporting an aligning bar 95,which aligns all totalizer wheels 90 except those being operated by theracks '77, the bar 95 being notched at points opposite the racks 77.

In order to bridge over the notches in the aligner bars 95 when thetotalizer shaft is being moved laterally for selection purposes, analigner 96 is moved into engagement with the totalizing pinions by meansnot shown.

Transfer mechanism for totalz'zers Each of the groups comprising aplurality of individual totalizers is provided with a novel form oftransfer mechanism which will now be described.

Fast on the main shaft 40 is a cam 100 (Fig. 3) co-operating with aroller 101 on a lever 102, pivoted on a stud 103. The lever 102 carriesa pin 104 co-operating with a slot in a sliding bar 105, the lower endof which. is guided on the rod 99. The upper end of the bar 105 isguided by a bracket (not shown) carried by the machine frame. The cam100, through the lever 102 causes, first an upward movement of the bar105, holding the bar in this position for approximately one-half of theoperation of the machine, and then lowers the bars to its normalposition.

The upper end of the bar 105 has a rack 106 meshing with a pinion 10'7fast on the shaft 108. Also fast on the shaft 108 are a number of disks109, (Figs. 1 and 2) one co-operating with the transfer mechanism foreach of the totalizer wheels (except the units wheel) of the selectedindividual totalizer. Each of the disks 109 has a cam race 110co-operating with a roller 111 on a lever 112, pivoted upon a shaft 113,supported in themachine frame. Each of the levers 112 is pivoted to auniversal bar 114, the lower end of which is guided by the rod 99.

Each disk 109, lever 112 and 114 is common to the same denominationalorder for the three lines of totalizers.

The up-and-down movement of the bar 105, previously described, rotatesthe disk 109 first counter-clockwise and then clockwise to normalposition. The races 110 are so arranged that they become effective, tocause a transfer, in succession acting from lower to higher numericalorder, so that as they are rotated, the levers 112 will be rocked firstclockwise, one after the other, starting with the disk associated withthe transfer mechanism for the highest totalizer wheel. When the disks109 are rotated to normal positions, the levers 112 are rockedcounter-clockwise, and the bars 114 raised to their home positions, oneafter the other, starting with the one associated with the tens wheel.

Each of the universal bars 114 has three lugs 120, (Figs. 1, 2 and 5)which, when the bars 114 are in their normal positions, receive andsupport pins 121 carried by transfer pawls 122. Each pawl 122 is pivotedat 123 to an arm 124, loosely mounted upon a sleeve 125, through whichthe shaft 93 slides. These sleeves 125 are held against rotation, whilethe'shafts 93 are free to slideback and forth therethrough to select thevarious individual totalizers for operation.

' lever 128.

gaged from the transfer pawls 122.

1,930,287 Thefarm' 124, in addition to" being supported by the transferpawl 122, asjust described, is also supported at times by a hook 126,(Figs. 1, 5 and, '6) engaging'al'ip 127,011 the arm 124. r

The hook 126 is on the lower end of a twoarmed lever 128, secured to asleeve 129, loosely mounted upon arod 130; supported by the arms 94, Thehook 1261s normally held' in engagement with the lip 127 by a spring 131stretched between'studs carried by the arm 124 and the Also secured tothe sleeve 129 is a trip lever 132, having. a lip 133 with whichco-bperates along tooth 134 on' thetotalizer wheel 90. Adjac ent eachtrip lever 132 rss pinion 135, which meshes with the selected totalizerwheel 90. Whenthe parts are in' their home positions, as

illustrated, thealigner bar 96 is not in engage-.

ment with the totalizer wheels, so that those wheels of theselected'totalizer wouldbe free to move outof alignment were not somealigning means provided. An aligner pawl 136 is provided for each pinion135, and is held in engagement therewith by a spring 137stretchedbetween a stud on the pawl and the pin 121 of the transfer pawl122. t

The operation of the transfer mechanismfduring adding, is' as follows;The cam- 100 (Fig. 3) rotates in the direction of the arrow, and,asbefore'stated, through the lever 102 and bar 105, oscillates the shaft108 and disk 109 first counter-clockwise, thenclockwise, as viewed inFig. 2. The disks 109 by their counter-'clockwise'movement'slowerthebars 114, and as they move downwardlyfthe lugs are moved from beneaththe pins 121, and consequently the arms 124 and transfer pawls 122, forall three lines of totalizers, are held in their upper positions by thehooks 126.

As the bars 114 move downwardly, projections 140 thereon engage pins 141on the aligner pawls 136 and disengage said pawls from the pinions 135.The movements of these parts are so timed that the wheels 90 are inengagement with the racks .77 before the pawls 136 become entirelydisening the time the amounts are accumulated upon the selectedtotalizers.

The pinions 135 always remain in engagement with the totalizer wheels9!). Therefore, when the totalizer wheels are moved into engagement withthe racks 77, the pinions 135 become disen- When this occurs the pawls122 are rocked slightly counterclockwise by their springs 137 until thepins 121 lie against the rear sides of the bars 114. The engagingmovement of the totalizer is not suf- .ficient to disengage the hooks126 from the lips "127 of the arm 124. The slight upward movement of theshafts 130, however,-raises the arms 124 slightly, during which time thepins 121 slide up the rear edges of the bars 114. I

As viewed in Figs. 1, 2 and 5, the adding movement of the totalizerwheels 90 is clockwise. Considering now particularly Figs. 4 and 5, whenthe long tooth 134 reaches the lip 133, it cams the trip lever 132counter-clockwise. This action takes place when the units wheel 90passes from 9 to zero. The trip lever 132, through the sleeve 129, rocksthe lever 128 counter-clockwise and disengages the hook 126 from the lip127, and the spring 131 rocks the arm 124 clockwise, which carries thetransfer pawl 122 downwardly until the'number of parts in the machine.

the pm 121 engages the lug 120, which, it will'be remembered, is in itslowest position at thistima due to the previous downward movementofthebar 114.

To'insure'a positive downward movement of the arm 124, and transfer pawl122, when the 'hook 126 is disengaged from the lip 127,.means isprovided for actuating them in addition to the springs 131. This meanscomprises an arm 142; of thelever 128, which arm 'co-operates with a lip143 on the arm 124. Since the arm 142 receives a positive movement bythe long tooth 134, engagingthe lip 133, should the spring 131 becomes1uggish,-or fail to act for any reason at all, the arm 142 will contactthe lip143 and positively move thearm 124 downwardly consequentlylowering the transfer pawl 122. There is a clearance between. the lip143 and the arm 142, which clearance is to provide time for disengagingthe hook 26 the lip 127. r After the amount set upon the racks 5977has'been transferred to and accumulated in the selected totalizenduringwhich time various of the trip levers 132 may have been actuated to droptheir associated transfer pawls 122, as just described, the totalizerwheels 90 are disengaged from the racks 77. When the totalizer wheels 90reach their normal disengaged positions, the pinions 135 will be abovethe tripped'transfer pawls 122, and when said pawls are move d upwardly,each pawl engagesa tooth of its associate ed pinion 135 below the onewithwhich it is illustrated in contact in Figs. 2 and 5, the pins 121tions. The bars 114 are thus moved upwardly 195 one after the other,starting with the bar associatedwith the tens totalizer wheel, untilthey reach their normal home positions, shown in Figs. 2 and 5. Duringthe upward movement of the bars 114, the lugs 120 engage the pins 1211%! of the transfer pawls 122, and move the latter upwardly a distancesufiicient to engage them with their associated pinions 135 and causesaid pinions to move one additional step, which extra movement istransmitted to the associated totalizer wheels 90. The upper surface ofeach lug 120 is inclined so that it acts as a cam, and thereby insuresthat the pawl 122 will not become disengaged from pinion 135. As thetransfer pawls 122 are lifted to effect the transfer, they 180 also movethe arms 124 counter-clockwise thus raising the lips 127 thereof abovethe hooks 126 whereupon the springs 131 move said hooks beneath the lips127 to maintain the arms 124 in their normal positions.

From the above description it can beseen that, if a totalizer in each ofthe three lines of totalizers is being operated, and a transfer takesplace, for instance, from the units to the tens order in each of thethree totalizers, transfer mechanisms are operated all at one time, by asingle bar 114. This arrangement materially reduces Moreover, it willalso be noticed that the single driving mechanism, consisting of the cam100 lever 102, bar 105 and pinion 107 also materially reduces the numberof parts in the machine, because this single driving mechanism operatesthe transfer mechanisms for as many denominational orders as it isdesired to have in the totalizers.

While the form of mechanism herein shown and described is admirablyadapted to fulfill the objects primarily stated, it is to be understoodthat it is not intended to confine the invention to the one form ofembodiment herein disclosed, for it is susceptible of embodiment invarious forms all coming with the scope of the claims which follow.

What is claimed is:

1. In a transfer mechanism, the combination of a totalizer element, atransfer carrying arm, a transfer pawl pivoted on the free end of thecarrying arm, and means cooperating with the pawl to actuate thecarrying arm to cause a carry to be entered and to lock the totalizerwheel against accidental movement at the end of the carry movement.

2. In a transfer mechanism, the combination of a totalizer element, atransfer carrying arm, a transfer pawl pivoted on the carrying arm, areciprocating member, and a cam on the reciprocating member to actuatethe pawl and to cooperate with the pawl at the end of the carry movementto prevent accidental rotation of the totalizer element.

3. In a transfer mechanism, the combination of a totalizer element, atransfer carrying arm, a transfer pawl pivoted on the carrying arm, areciprocating element, a cam on the reciprocating element adapted tonormally maintain the pawl in contact with the totalizer element toprevent rotation thereof, means to actuate the reciprocating element torelease the totalizer element for actuation, and a stripping device todetermine when the reciprocating element shall cause the pawl to addinto the totalizer element.

4. In a transfer mechanism, the combination and a spring between thecarrying arm and the tripping means to maintain the tripping means inits supporting position.

5. In a transfer mechanism, the combination of a totalizer element; acarrying arm for effecting carries; a tripping means for the carryingarm; an arm extending into the path of the carrying arm to support thecarrying arm; another arm, on the tripping means, adapted to engage andactuate the carrying arm; and means to actuate the carrying arm to entera transfer and to restore the last-named arm to its normal position.

6. In a transfer mechanism, the combination of a totalizer element, atransfer carrying arm, a projection on one edge of the carrying arm, atripping element normally projecting beneath the projection, means towithdraw the tripping element from beneath the projection, anotherprojection on an edge of the carrying arm, and an arm on the trippingelement to strike the second-named projection when the tripping elementis withdrawn from the first-named projection.

'7. In a transfer mechanism, the combination of a totalizer element, atransfer carrying arm, a tripping element normally supporting thecarrying arm, means to withdraw the tripping element from its supportingposition, and an arm on the tripping element to strike the carrying armwhen the tripping element is withdrawn from its supporting position.

FREDERICK L. FULLER.

